wehub-resource-sync
76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
// Copyright 2024 Dolthub, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package cast
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/dolthub/go-mysql-server/sql"
|
|
|
|
"github.com/dolthub/doltgresql/core/casts"
|
|
"github.com/dolthub/doltgresql/core/id"
|
|
"github.com/dolthub/doltgresql/postgres/parser/pgdate"
|
|
"github.com/dolthub/doltgresql/postgres/parser/timeofday"
|
|
"github.com/dolthub/doltgresql/server/functions/framework"
|
|
pgtypes "github.com/dolthub/doltgresql/server/types"
|
|
)
|
|
|
|
// initTimestamp handles all casts that are built-in. This comprises only the source types.
|
|
func initTimestamp(builtInCasts map[id.Cast]casts.Cast) {
|
|
timestampAssignment(builtInCasts)
|
|
timestampImplicit(builtInCasts)
|
|
}
|
|
|
|
// timestampAssignment registers all assignment casts. This comprises only the source types.
|
|
func timestampAssignment(builtInCasts map[id.Cast]casts.Cast) {
|
|
framework.MustAddAssignmentTypeCast(builtInCasts, framework.TypeCast{
|
|
FromType: pgtypes.Timestamp,
|
|
ToType: pgtypes.Date,
|
|
Function: func(ctx *sql.Context, val any, _, targetType *pgtypes.DoltgresType) (any, error) {
|
|
d, err := pgdate.MakeDateFromTime(val.(time.Time))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return d.ToTime()
|
|
},
|
|
})
|
|
framework.MustAddAssignmentTypeCast(builtInCasts, framework.TypeCast{
|
|
FromType: pgtypes.Timestamp,
|
|
ToType: pgtypes.Time,
|
|
Function: func(ctx *sql.Context, val any, _, targetType *pgtypes.DoltgresType) (any, error) {
|
|
return timeofday.FromTime(val.(time.Time)), nil
|
|
},
|
|
})
|
|
}
|
|
|
|
// timestampImplicit registers all implicit casts. This comprises only the source types.
|
|
func timestampImplicit(builtInCasts map[id.Cast]casts.Cast) {
|
|
framework.MustAddImplicitTypeCast(builtInCasts, framework.TypeCast{
|
|
FromType: pgtypes.Timestamp,
|
|
ToType: pgtypes.Timestamp,
|
|
Function: func(ctx *sql.Context, val any, _, targetType *pgtypes.DoltgresType) (any, error) {
|
|
return val.(time.Time), nil
|
|
},
|
|
})
|
|
framework.MustAddImplicitTypeCast(builtInCasts, framework.TypeCast{
|
|
FromType: pgtypes.Timestamp,
|
|
ToType: pgtypes.TimestampTZ,
|
|
Function: func(ctx *sql.Context, val any, _, targetType *pgtypes.DoltgresType) (any, error) {
|
|
// TODO: check
|
|
return val.(time.Time), nil
|
|
},
|
|
})
|
|
}
|